The Sun crosses the Celestial Equator this week, but what exactly does that mean?

Warmer days, a little more sunshine and budding flowers — spring is on the way! Here is a little bit of science behind what ...

Say goodbye to winter! The spring equinox is on Friday, March 20, officially at 7:46 a.m. Pacific Time, and highlights the ...

On March 20, winter officially ends with the arrival of the astronomical spring in the Northern Hemisphere.

Spring gets its official start Friday in the Northern Hemisphere with the arrival of the vernal equinox. But what does that ...

The vernal equinox arrives at 10:46 a.m. on Friday, March 20, marking the official start of astronomical spring in the Northern Hemisphere. At its core, the equinox is all about balance, although I'm ...

The spring equinox and the sun's solar cycle could bring views of the northern lights, also known as the aurora borealis, ...

Here is what to know about the beginning of spring in Tennessee. This year, the first day of astronomical spring is March 20.

Uncover 100 Things You Never Knew About The Earth! Explore mind-blowing facts from its fiery core to the moon's violent birth ...

Why would a warming climate change the length of a day? Earth still turns once every 24 hours by the clocks people live by, ...

Daylight saving time starts Sunday, March 8. Here's when clocks change and why the U.S. still observes DST.

The findings confirm a theory first proposed 16 years ago by University of California, Berkeley theoretical astrophysicist ...